Indeed, filmmakers have been particularly interested in the notion of computers as powerful tools for wreaking havoc, though have often been less interested in portraying reality. The geek crowd has weighed in on the movies that got it right and those that didn’t. The makers of the sci-fi “Matrix” trilogy got kudos, for instance, for shots of real programming code in 2003’s “Matrix Reloaded.” On the flipside are films like 1995’s “Hackers,” which depict the Internet controlling everything, including high-school sprinkler systems. In film after film, hacking scenes involve a conspicuously large, blinking password prompt, then a few “access denied” messages before the heroes crack the code.